Circuit Breakers

Circuit Breakers

Circuit Breakers - Source rare and hard-to-find breakers with ease

At ARCA Supply, we know that circuit breakers are essential to safeguarding electrical systems, protecting them from overloads and short circuits. Whether you're managing a commercial facility, maintaining industrial equipment, or working on residential projects, having the right circuit breakers ensures uninterrupted performance and peace of mind.

Our selection of circuit breakers spans a wide range of applications, from heavy-duty air circuit breakers (ACBs) to compact miniature circuit breakers (MCBs). We offer leading brands like Eaton, Siemens, and Square D, known for their reliability and performance. Whatever your power management needs, you can find the perfect solution here at ARCA Supply.

Explore Our Circuit Breaker Categories:

  • Air Circuit Breakers (ACBs): Ideal for large-scale industrial applications, ACBs provide superior protection in high-current scenarios.
  • Din Rail Mounted Circuit Breakers: These breakers are designed for quick installation in compact spaces, making them perfect for modular setups.
  • Main Breakers: As a crucial part of any electrical system, main breakers ensure that circuits are effectively managed and protected from faults.
  • Miniature Circuit Breakers (MCBs): Designed for residential and commercial use, MCBs are essential for protecting lower power circuits from damage.
  • Molded Case Breakers (MCCBs): When high current protection is needed, MCCBs offer robust and durable performance.
  • Motor Circuit Protectors (MCPs): Specifically engineered to protect motors, MCPs offer fast response times to prevent equipment damage.
  • Circuit Breaker Accessories: From trip units to mounting kits, we stock a variety of accessories to enhance the functionality of your breakers.

Leading Brands We Carry:

At ARCA Supply, we carry a comprehensive lineup of top brands to ensure you get the best quality and reliability. Our inventory includes trusted names such as Eaton, Square D, Siemens, and General Electric. With over 2,600 Eaton products and hundreds from brands like ABB, Schneider Electric, and Leviton, you can be confident in finding exactly what you need.

Choose the Right Circuit Breaker:

When selecting a circuit breaker, factors such as current rating, voltage rating, and mounting style are critical. Our range includes options for:

  • Current Ratings: From 15A to 600A, ensuring the right protection for every application.
  • Voltage Ratings: With options ranging from 120V to 600V for both AC and DC applications.
  • Mounting Types: Choose from plug-on, DIN rail, or bolt-on mountings to match your installation requirements.

Why Choose ARCA Supply?

As a trusted distributor specializing in hard-to-find electrical components, we ensure that our circuit breakers meet the highest industry standards. Our commitment to the circular economy also means that unsold products are responsibly recycled, helping to reduce waste while supporting your projects.

Explore our extensive collection of circuit breakers today and find the perfect solution for your electrical system’s needs.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Eaton LGU340032G Molded Case Breakers (MCCBs)

    Eaton LGU340032G Molded Case Breakers (MCCBs)

    MSRP $22,467.52
    Surplus $3,474.61
    SKU:  C15-9517 Brand:  Eaton MPN:  LGU340032G UPC:  78668518465 Shipping Weight:  14.85 lbs. Shipping Height:  8.00 In. Shipping Length:  13.00 In. Shipping Width:  9.00 In...
    SKU:
    C15-9517
    TS PIK:
    122381446
    Short Description:
    EATON SERIES G ELECTRONIC MOLDED CASE CIRCUIT BREAKER, LG-FRAME, LG, DIGITRIP 31
    MSRP $22,467.52
    Surplus $3,474.61
    Qty in Cart: 0
    Price:
    MSRP $22,467.52
    Surplus $3,474.61
    Subtotal:
  • Eaton LHH3400NN Molded Case Breakers (MCCBs)

    Eaton LHH3400NN Molded Case Breakers (MCCBs)

    MSRP $1,500.00
    Surplus $453.12
    SKU:  C15-11837 Brand:  Eaton MPN:  LHH3400NN UPC:   Shipping Weight:  11.65 lbs. Shipping Height:  7.00 In. Shipping Length:  13.00 In. Shipping Width:  8.00 In. Product...
    SKU:
    C15-11837
    MSRP $1,500.00
    Surplus $453.12
    Qty in Cart: 0
    Price:
    MSRP $1,500.00
    Surplus $453.12
    Subtotal:
  • Eaton LKD1 Circuit Breaker Accessories Eaton LKD1 Circuit Breaker Accessories

    Eaton LKD1 Circuit Breaker Accessories

    MSRP $15.10
    Surplus $9.82
    Eaton LKD1 Circuit Breaker Accessories​ ARCA SKU:  C15-2452 Brand:  Eaton MPN:  LKD1 UPC:  786679148402 Shipping Weight:  0.05 lbs. Shipping Height:  1.00 In. Shipping...
    SKU:
    C15-2452
    Series:
    C
    Type:
    Non-Padlockable
    Used On:
    F Frame Circuit Breaker
    Locking Provision:
    ON/OFF
    Short Description:
    ON/OFF Locking Provision, Non-Padlockable
    Catalog:
    Eaton_27487_V4T2_454_V4T2_494_CAT.pdf
    TS PIK:
    21505165
    Country of Origin:
    United States
    MSRP $15.10
    Surplus $9.82
    Qty in Cart: 0
    Price:
    MSRP $15.10
    Surplus $9.82
    Subtotal:
  • Eaton LPC215 Circuit Breaker Accessories Eaton LPC215 Circuit Breaker Accessories

    Eaton LPC215 Circuit Breaker Accessories

    MSRP $72.00
    Surplus $27.00
    SKU:  C15-11491 Brand:  Eaton MPN:  LPC215 UPC:   Shipping Weight:  1.15 lbs. Shipping Height:  3.00 In. Shipping Length:  11.00 In. Shipping Width:  8.00 In. Product...
    SKU:
    C15-11491
    Short Description:
    15 kV, 95 kV BIL, 200 A, Insulated, Loadbreak Protective Cap with Drain Wire and Cuff/Silicone Lubricant
    Type:
    Insulated
    Data Sheet:
    Eaton_57936_1_2_DATA.pdf
    Catalog:
    Eaton_57916_11_CAT.pdf
    MSRP $72.00
    Surplus $27.00
    Qty in Cart: 0
    Price:
    MSRP $72.00
    Surplus $27.00
    Subtotal:
  • Eaton LST1RTK Circuit Breaker Accessories

    Eaton LST1RTK Circuit Breaker Accessories

    MSRP $1,463.96
    Surplus $289.55
    SKU:  C15-11223 Brand:  Eaton MPN:  LST1RTK UPC:  78667955366 Shipping Weight:  0.35 lbs. Shipping Height:  4.00 In. Shipping Length:  4.00 In. Shipping Width:  6.00 In...
    SKU:
    C15-11223
    TS PIK:
    107004612
    Country of Origin:
    Dominican Republic
    MSRP $1,463.96
    Surplus $289.55
    Qty in Cart: 0
    Price:
    MSRP $1,463.96
    Surplus $289.55
    Subtotal:
  • Eaton LST3LPK Circuit Breaker Accessories

    Eaton LST3LPK Circuit Breaker Accessories

    MSRP $969.00
    Surplus $385.12
    SKU:  C15-11797 Brand:  Eaton MPN:  LST3LPK UPC:  78667965212 Shipping Weight:  0.20 lbs. Shipping Height:  3.00 In. Shipping Length:  6.00 In. Shipping Width:  4.00 In...
    SKU:
    C15-11797
    TS PIK:
    107005270
    MSRP $969.00
    Surplus $385.12
    Qty in Cart: 0
    Price:
    MSRP $969.00
    Surplus $385.12
    Subtotal:
  • Eaton LT325032 Molded Case Breakers (MCCBs)

    Eaton LT325032 Molded Case Breakers (MCCBs)

    MSRP $4,300.80
    Surplus $688.17
    SKU:  C15-9546 Brand:  Eaton MPN:  LT325032 UPC:  78211636591 Shipping Weight:  2.85 lbs. Shipping Height:  5.00 In. Shipping Length:  9.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-9546
    TS PIK:
    120877416
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TRIP UNIT, TRIP UNIT, 250 A, THREE-P
    Country of Origin:
    United States
    MSRP $4,300.80
    Surplus $688.17
    Qty in Cart: 0
    Price:
    MSRP $4,300.80
    Surplus $688.17
    Subtotal:
  • Eaton LT3500T Molded Case Breakers (MCCBs) 3P 500A

    Eaton LT3500T Molded Case Breakers (MCCBs) 3P 500A

    MSRP $3,692.79
    Surplus $799.34
    SKU:  A13-1036 Brand:  Eaton MPN:  LT3500T UPC:  786679580073 Shipping Weight:  2.80 lbs. Shipping Height:  5.60 In. Shipping Length:  8.50 In. Shipping Width:  5.40 In...
    SKU:
    A13-1036
    Adjustment:
    Magnetic Trip
    Approval:
    UL
    Approval:
    CE
    Amps:
    500 A
    Frame:
    LD
    Frame:
    HLD
    Frame:
    LDC
    Poles:
    3
    Type:
    Thermal Magnetic
    Short Description:
    500 A, 3-Pole, LD/HLD/LDC Frame, Thermal Magnetic, Molded Case Circuit Breaker Trip Unit
    Specification/Technical:
    Eaton_08951_1_2_SPEC.pdf
    Installation/Operator:
    Eaton_00487_INST.pdf
    TS PIK:
    21513707
    Frame Type:
    LD, HLD, LDC
    Number of Poles:
    3
    Current Rating:
    500 A
    Catalog:
    Eaton_27487_V4T2_324_V4T2_326_V4T2_484_CAT.pdf
    Country of Origin:
    United States
    MSRP $3,692.79
    Surplus $799.34
    Qty in Cart: 0
    Price:
    MSRP $3,692.79
    Surplus $799.34
    Subtotal:
  • Eaton LTS3K Circuit Breaker Accessories Eaton LTS3K Circuit Breaker Accessories

    Eaton LTS3K Circuit Breaker Accessories

    MSRP $147.00
    Surplus $66.10
    Eaton LTS3K Circuit Breaker Accessories​ ARCA SKU:  C15-2350 Brand:  Eaton MPN:  LTS3K UPC:  782116197941 Shipping Weight:  0.60 lbs. Shipping Height:  5.00 In. Shipping...
    SKU:
    C15-2350
    Type:
    Terminal Cover
    Used On:
    G Series LG Frame Molded Case Circuit Breaker
    Specification/Technical:
    Eaton_60661_1_2_SPEC.pdf
    TS PIK:
    120395288
    Catalog:
    Eaton_03771_V4T2_162_V4T2_163_V4T2_218_CAT.pdf
    Short Description:
    EATON MOLDED CASE CIRCUIT BREAKER ACCESSORY TERMINAL SHIELD KIT, TERMINAL SHIELD
    Country of Origin:
    United States
    MSRP $147.00
    Surplus $66.10
    Qty in Cart: 0
    Price:
    MSRP $147.00
    Surplus $66.10
    Subtotal:
  • Eaton LW3800VW Molded Case Breakers (MCCBs) LW 3P 800A 690V 50/60Hz 3Ph L Frame Eaton LW3800VW Molded Case Breakers (MCCBs) LW 3P 800A 690V 50/60Hz 3Ph L Frame

    Eaton LW3800VW Molded Case Breakers (MCCBs) LW 3P 800A 690V 50/60Hz 3Ph L Frame

    MSRP $16,368.70
    Surplus $2,257.51
    SKU:  C15-1916 Brand:  Eaton MPN:  LW3800VW UPC:   Shipping Weight:  25.55 lbs. Shipping Height:  9.00 In. Shipping Length:  19.00 In. Shipping Width:  11.00 In. Product...
    SKU:
    C15-1916
    Frame Type:
    L
    Voltage Rating:
    600 VAC
    Current Rating:
    800 A
    Number of Poles:
    3
    Interrupting Rating:
    45 kA at 415 Vac
    Short Description:
    Eaton Series C complete molded case circuit breaker, L-frame, LW, Complete breaker, Interchangeable thermal-magnetic trip type, Three-pole, 800A, 690 Vac, 250 Vdc, 45 kA at 415 Vac, Without terminals, World
    Series:
    C
    MSRP $16,368.70
    Surplus $2,257.51
    Qty in Cart: 0
    Price:
    MSRP $16,368.70
    Surplus $2,257.51
    Subtotal:
  • Eaton M12CS Circuit Breaker Accessories

    Eaton M12CS Circuit Breaker Accessories

    MSRP $366.00
    Surplus $165.12
    SKU:  C15-11615 Brand:  Eaton MPN:  M12CS UPC:  78211466712 Shipping Weight:  1.35 lbs. Shipping Height:  6.00 In. Shipping Length:  9.00 In. Shipping Width:  2.00 In...
    SKU:
    C15-11615
    TS PIK:
    124263779
    MSRP $366.00
    Surplus $165.12
    Qty in Cart: 0
    Price:
    MSRP $366.00
    Surplus $165.12
    Subtotal:
  • Eaton M3RRG2000 Circuit Breaker Accessories EA Eaton M3RRG2000 Circuit Breaker Accessories EA

    Eaton M3RRG2000 Circuit Breaker Accessories EA

    MSRP $4,752.00
    Surplus $916.96
    SKU:  C15-9645 Brand:  Eaton MPN:  M3RRG2000 UPC:  78211475205 Shipping Weight:  16.85 lbs. Shipping Height:  8.00 In. Shipping Length:  13.00 In. Shipping Width:  13.00 In...
    SKU:
    C15-9645
    TS PIK:
    121861112
    Type:
    Sensor/Rating Plug Field Change-Out Kit
    Used On:
    Double Standard Magnum Frame Circuit Breaker
    Catalog:
    EatonCorp-CutlerHammer_00007_64_CAT.pdf
    Country of Origin:
    United States
    MSRP $4,752.00
    Surplus $916.96
    Qty in Cart: 0
    Price:
    MSRP $4,752.00
    Surplus $916.96
    Subtotal:
  • Eaton M3RRG3200 Circuit Breaker Accessories EA Eaton M3RRG3200 Circuit Breaker Accessories EA

    Eaton M3RRG3200 Circuit Breaker Accessories EA

    MSRP $5,684.00
    Surplus $735.76
    SKU:  C15-9653 Brand:  Eaton MPN:  M3RRG3200 UPC:  78211475207 Shipping Weight:  16.50 lbs. Shipping Height:  8.00 In. Shipping Length:  13.00 In. Shipping Width:  13.00 In...
    SKU:
    C15-9653
    TS PIK:
    121861114
    Country of Origin:
    United States
    MSRP $5,684.00
    Surplus $735.76
    Qty in Cart: 0
    Price:
    MSRP $5,684.00
    Surplus $735.76
    Subtotal:
  • Eaton M3SRG1250 Circuit Breaker Accessories EA Eaton M3SRG1250 Circuit Breaker Accessories EA

    Eaton M3SRG1250 Circuit Breaker Accessories EA

    MSRP $2,541.00
    Surplus $715.32
    SKU:  C15-5180 Brand:  Eaton MPN:  M3SRG1250 UPC:  78211475184 Shipping Weight:  8.25 lbs. Shipping Height:  7.00 In. Shipping Length:  8.00 In. Shipping Width:  7.00 In...
    SKU:
    C15-5180
    TS PIK:
    121861093
    Short Description:
    1250 A, 3-Pole, Standard, Current Sensor and Rating Plug Kit with (3) Sensor/(1) Rating Plug for Magnum 3200 A Low Vage Power Circuit Breaker
    Catalog:
    Eaton_14664_12_CAT.pdf
    Type:
    Sensor/Rating Plug Field Change Out Kit
    Used On:
    IEC Low Vage Air Circuit Breaker
    MSRP $2,541.00
    Surplus $715.32
    Qty in Cart: 0
    Price:
    MSRP $2,541.00
    Surplus $715.32
    Subtotal:
  • Eaton M4CS Circuit Breaker Accessories Cassette Cell Switch Kit Mounting Shield Eaton M4CS Circuit Breaker Accessories Cassette Cell Switch Kit Mounting Shield

    Eaton M4CS Circuit Breaker Accessories Cassette Cell Switch Kit Mounting Shield

    MSRP $529.00
    Surplus $402.18
    SKU:  C15-2552 Brand:  Eaton MPN:  M4CS UPC:  786685707396 Shipping Weight:  1.50 lbs. Shipping Height:  3.00 In. Shipping Length:  8.00 In. Shipping Width:  6.00 In...
    SKU:
    C15-2552
    General Accessories:
    Mounting Shield
    Short Description:
    EATON MAGNUM CELL SWITCH KIT, MAGNUM, UNIVERSAL
    MSRP $529.00
    Surplus $402.18
    Qty in Cart: 0
    Price:
    MSRP $529.00
    Surplus $402.18
    Subtotal:
  • Eaton MCBL300 Circuit Breaker Accessories Eaton MCBL300 Circuit Breaker Accessories

    Eaton MCBL300 Circuit Breaker Accessories

    MSRP $140.00
    Surplus $82.38
    SKU:  C15-3723 Brand:  Eaton MPN:  MCBL300 UPC:  782113099316 Shipping Weight:  0.10 lbs. Shipping Height:  2.00 In. Shipping Length:  7.00 In. Shipping Width:  5.00 In...
    SKU:
    C15-3723
    Body Material:
    0
    Conductor Material:
    Copper/Aluminum
    Amps:
    300 A
    Maximum Conductor Size:
    300 KCMIL
    Minimum Conductor Size:
    2 AWG
    Number of Conductors:
    2
    Quantity:
    1
    Used On:
    BW/BWH/CSR Series Main Breaker
    Short Description:
    300 A, 2 AWG to 300 KCMIL, 2-Conductor, Aluminum, Circuit Breaker Terminal Kit
    Series:
    CH
    Specification/Technical:
    Eaton_39867_1_SPEC.pdf
    TS PIK:
    111009832
    Catalog:
    Eaton_00001_V1T1_43_V1T1_92_CAT.pdf
    Type:
    Lug
    Country of Origin:
    Dominican Republic
    MSRP $140.00
    Surplus $82.38
    Qty in Cart: 0
    Price:
    MSRP $140.00
    Surplus $82.38
    Subtotal:
  • Eaton MCP23480CR Other Circuit Breakers

    Eaton MCP23480CR Other Circuit Breakers

    MSRP $2,731.00
    Surplus $1,565.62
    SKU:  C15-6825 Brand:  Eaton MPN:  MCP23480CR UPC:   Shipping Weight:  4.50 lbs. Shipping Height:  5.00 In. Shipping Length:  8.00 In. Shipping Width:  6.00 In. Product...
    SKU:
    C15-6825
    MSRP $2,731.00
    Surplus $1,565.62
    Qty in Cart: 0
    Price:
    MSRP $2,731.00
    Surplus $1,565.62
    Subtotal:
  • Eaton MDL3800 Molded Case Breakers (MCCBs) MDL 3P 800A 240V 50/60Hz 3Ph M Frame EA Eaton MDL3800 Molded Case Breakers (MCCBs) MDL 3P 800A 240V 50/60Hz 3Ph M Frame EA

    Eaton MDL3800 Molded Case Breakers (MCCBs) MDL 3P 800A 240V 50/60Hz 3Ph M Frame EA

    MSRP $13,140.22
    Surplus $3,505.61
    SKU:  C15-1819 Brand:  Eaton MPN:  MDL3800 UPC:  782114586006 Shipping Weight:  30.00 lbs. Shipping Height:  8.00 In. Shipping Length:  18.00 In. Shipping Width:  11.00 In...
    SKU:
    C15-1819
    Frame Type:
    MDL
    Voltage Rating:
    600 VAC
    Current Rating:
    800 A
    Number of Poles:
    3
    Interrupting Rating:
    50 kA at 480 VAC
    Type:
    Line and Load Terminal
    Maximum AC Voltage Rating:
    600 VAC
    Terminal Type:
    Line and Load Terminal
    Size:
    8.25 Inch Width x 4.06 Inch Depth x 16 Inch Height
    Short Description:
    600 VAC 50/60 Hz, 800 A, 50 kA, 3-Pole, MDL Frame, Thermal Magnetic, Molded Case, Interchangeable Trip Circuit Breaker
    Catalog:
    Eaton_27487_V4T2_254_V4T2_255_V4T2_349-V4T2_351_CAT.pdf
    Installation/Operator:
    Eaton_00237_INST.pdf
    Specification/Technical:
    Eaton_39889_1_2_SPEC.pdf
    Series:
    C
    Maximum DC Voltage Rating:
    250 V
    Approval:
    UL 489, CSA C22.2,CE
    MSRP $13,140.22
    Surplus $3,505.61
    Qty in Cart: 0
    Price:
    MSRP $13,140.22
    Surplus $3,505.61
    Subtotal:
  • Eaton MDL3800WK Molded Case Breakers (MCCBs)

    Eaton MDL3800WK Molded Case Breakers (MCCBs)

    MSRP $17,861.00
    Surplus $3,857.16
    SKU:  U00-8349 Brand:  Eaton MPN:  MDL3800WK UPC:  78211441543 Shipping Weight:  26.00 lbs. Shipping Height:  9.00 In. Shipping Length:  22.00 In. Shipping Width:  10.00 In...
    SKU:
    U00-8349
    Country of Origin:
    United States
    MSRP $17,861.00
    Surplus $3,857.16
    Qty in Cart: 0
    Price:
    MSRP $17,861.00
    Surplus $3,857.16
    Subtotal:
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